QUESTION 1 4 points Save Answer In the figures below, balls are traveling in different directions. The balls have the same size, mass and shape, but they are traveling with different velocities as shown. A 2 kg B C O 2 kg O 4 m/s 2 kg O 14 m/s 3 m/s (a) Rank the magnitude of the momentum of the balls, greatest to least. Explain your reasoning. (b) Rank the kinetic energy of the balls, greatest to least. Explain your reasoning. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIUS Paragraph Arial 10pt Ev V A V V IX .. . E X2 SIT The + X T ( O (?) + P O WORDS POWERED BY TINYQUESTION 2 2 points Save Answer Cars moving along horizontal roads are about to be stopped when they hit a protective barrier. All of the cars are the same size and shape, but they are moving at different speeds and have different masses. The barriers are all identical and exert the same constant force. A B C D 10 m/s 20 m/s 30 m/s 20 m/s m = 3000 kg m = 1000 kg m = 1000 kg m = 2000 kg Rank the time (greatest to least) that it takes to stop the cars as the barriers apply the same constant force. Explain your reasoning For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIUS Paragraph Arial 10pt A IX .. . E X2 X2 + X EXE TO O (? K 7 Ky + P O WORDS POWERED BY TINYQUESTION 3 2 points Save Answer Before and after "snapshots" of a car's velocity are shown. All cars have the same mass. A B Before After Before After +10 m/s 0 +10 m/s -10 m/s C D Before After Before After +20 m/s +20 m/s -10 m/s -20 m/s Rank the magnitude of the change in momentum of the cars, greatest to least. Explain your reasoning. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac).QUESTION 4 3 points Save Answer A 10-kg box, initially at rest, moves along a frictionless horizontal surface. A horizontal force to the right is applied to the box. The magnitude of the force changes as a function of time as shown. Force (Newtons) N Time (seconds) N 4 6 8 10 Rank the impulse applied to the box by this force during each 2-second interval indicated below. A. 0 to 2 s B. 2 to 4 s C. 4 to 6 s D. 6 to 8 s E. 8 to 10 s For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIUS Paragraph Arial V 10pt Ev V A V ... E E X2 X2 IT The + X EXE (?QUESTION 5 3 points Save Answer In the figures below, two balls traveling in different directions are about to collide. The balls are identical in size and shape, but they have different masses and are traveling at different velocities as shown. A 3 m/s B C D 4 m/s 102 kg 2 kg 4 m/s 3 m/s 3 m/s 2 kg 2 kg O OF 4 m/s 2 kg O 2 kg O 2 kg 3 kg 4 m/s 3 m/s (a) Rank the magnitude of the momentum of the two-ball systems before they collide. Explain your reasoning. (b) Rank the magnitude of the momentum of the two-ball systems after they collide if the balls stick together. Explain your reasoning. (c) Rank the magnitude of the momentum of the two-ball systems after they collide elastically (energy conserved). Explain your reasoning. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIUS Paragraph Arial 10pt A IX . . . E E X2 X2 SIT + X EXE O ?QUESTION 6 2 points Save Answer In the figures below, two balls traveling in different directions are about to collide. The balls have the same size and shape, but they have different masses and are traveling at different velocities as shown. A 3 m/s B C D 4 m/s|2 kg 2 kg 4 m/s 3 m/s 3 m/s 2 kg 2 kg O OF 4 m/s 2 kg 2 kg O 2 kg 3 kg 4 m/s 3 m/s For the questions below, use the directions indicated by the arrows in the direction rosette, or use J for no direction, K for into the page, or L for out of the page. M T N S O R P QFor the questions below, use the directions indicated by the arrows in the direction rosette, or use J for no direction, K for into the page, or L for out of the page. M T N S O R P Q (a) Identify the closest directional match for the direction of the momentum of the two-ball systems before they collide. Explain your reasoning. (b) Identify the closest directional match for the direction of the momentum of the two-ball systems after they collide if the balls stick together. Explain your reasoning. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIUS Paragraph Arial 10pt A TX ... E E X2 X 2 BC X EXE i ( } O ? + P O WORDS POWERED BY TINY